/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.beam.sdk.transforms.splittabledofn;

/**
 * Interface for restrictions for which a default implementation of {@link
 * org.apache.beam.sdk.transforms.DoFn.NewTracker} is available, depending only on the restriction
 * itself.
 */
public interface HasDefaultTracker<
    RestrictionT extends HasDefaultTracker<RestrictionT, TrackerT>,
    TrackerT extends RestrictionTracker<RestrictionT, ?>> {
  /** Creates a new tracker for {@code this}. */
  TrackerT newTracker();
}
